Let's have a reality check here...
Eurovision isn't taken seriously anymore. In the UK it's become a "gay" festival, taking over from the Sound of Music as an excuse for outrageous camp parties and lots of singalong and shouting at the television. I think it's great (not my scene but I have no problem with the "takeover"). The "winning" entry is aimed at, and scores with, this sector of the viewing public, so 10 out of 10 to the Beeb for realising that.
Wogan is now old, past his prime and should retire. Make the evening completely camp and get someone like Graham Norton (obnoxious, untalented, fawning and easily disliked) to present it.
By keeping up the pretence that the mainstream public gives a toss about the outcome, the BBC is making itself look stupid. They should go over-the-top and have fun, turning it into a fluffy pink kitch-fest. It's all decided, in the end, by a load of East-European wastelands anyway!